YK CENTRIFUGAL LIQUID CHILLER OptiView ... - Johnson Controls

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34 160-54-OI-GB0 LCSSS - STOP CONTACTS OPEN See 'LCSSS SHUTDOWN – REQUESTING FAULT DATA...'. If the microprocessor board in the control panel does not receive the cause of a starter initiated shutdown within 20 seconds of the shutdown, it is assumed it is not available and that message is replaced with this message. The unit can be started when the Motor Controller LCSSS Stop Contacts close. A missing interlock jumper between the LCSSS logic/trigger board J1-1 and J1-12will also produce this message. LCSSS - POWER FAULT The LCSSS logic/trigger board has detected that the compressor motor current in one or more phases has decreased to 25% of the motor FLA. The unit will automatically restart upon completion of 'SYSTEM COASTDOWN'. LCSSS - LOW PHASE (X) TEMPERATURE SENSOR The LCSSS logic/trigger board has detected that the temperature of the starter phase A, B or C (designated as X in the message) Silicon Controlled Rectifier (SCR) module has decreased to < 2.8 °C (37 °F). This would generally indicate a disconnected or defective sensor. If all three SCR modules are indicating a temperature of
LCSSS Supply Voltage Thresholds Supply Low Supply Voltage High Supply Voltage Voltage Shutdown Re-start Shutdown Re-start Range (V) (V) (V) (V) (V) Disabled None N/A None N/A 200 - 208 160 174 227 226 220 - 240 185 200 262 261 380 305 331 415 414 400 320 349 436 435 415 335 362454 453 440 - 480 370 400 524 523 550 600 460 502655 654 LCSSS - LOGIC BOARD PROCESSOR Communication between the V25 Microprocessor and Digital Signal Processor (DSP) on the LCSSS logic/trigger board has been interrupted. The unit will automatically restart when communications are restored. LCSSS - LOGIC BOARD POWER SUPPLY Following application of power, this message is displayed and a snapshot of the LCSSS parameters and time of power failure are sent to the control panel. LCSSS – PHASE ROTATION/LOSS (Flash Memory Card Version C.MLM.01.03 or earlier) The LCSSS logic/trigger board has detected the three-phase compressor motor supply voltage phase rotation is not correct or the line-to-line voltage in any phase has decreased to the 'SHUTDOWN THRESHOLD'. 10.3.3 Cycling Shutdown Messages Models with Variable Speed Drive These messages are generated by events that occur within the Variable Speed Drive (VSD). The unit will automatically restart when the cycling condition clears. Service and troubleshooting information is contained in manual 160.00-M1. VSD SHUTDOWN – REQUESTING FAULT DATA The VSD has shutdown the unit and the control panel has not yet received the cause of the fault from the VSD, via the serial communications link. The VSD shuts down the unit by opening the motor controller VSD stop contacts (located on the VSD logic board and connected between TB6-16 and TB6-53 in the control panel). The microprocessor board in the control panel then sends a request for the cause of the fault to the VSD logic board via the Adaptive Capacity Control (ACC) board, over the serial link. Since serial communications are initiated every 2seconds, this message is typically displayed for a few seconds and then replaced with one of the following fault messages: VSD – STOP CONTACTS OPEN See 'VSD SHUTDOWN – REQUESTING FAULT DATA'. If the microprocessor board in the control panel does not receive the cause of the fault over the serial link within 20 seconds, it is assumed it is not available and that message is replaced with this message. VSD INITIALIZATION FAILED 160-54-OI-GB0 35 Upon application of power, all boards go through the initialisation process. At this time, memory locations are cleared, program jumper positions are checked and serial communications links are established. There are several causes for an unsuccessful initialisation as follows: The control panel and the VSD must be energised at the same time. The practice of pulling the fuse in the control panel to remove power from the control panel will create a problem. Power-up must be accomplished by closing the switch disconnect on the VSD cabinet with all fuses in place. A power interruption to the VSD logic board will also generate this message.
Page 1 and 2: YK CENTRIFUGAL LIQUID CHILLER OptiV
Page 3 and 4: OptiView Control Panel Display Soft
Page 5 and 6: Master Switch The three-position ro
Page 7 and 8: 2 SYSTEM SCREEN The 'SYSTEM SCREEN'
Page 9 and 10: Cycling Offset - Shutdown Defines t
Page 11 and 12: 5 COMPRESSOR SCREEN The 'COMPRESSOR
Page 13 and 14: 7 MOTOR SCREENS 7.1 EM STARTER SCRE
Page 15 and 16: 7.3 VSD SCREEN The 'VSD SCREEN' sho
Page 17 and 18: 8 SETPOINTS SCREEN The 'SETPOINTS S
Page 19 and 20: 8.1 SETUP SCREEN The 'SETUP SCREEN'
Page 21 and 22: 8.1.2 USER SCREEN The 'USER SCREEN'
Page 23 and 24: 8.1.5 SALES ORDER SCREEN The 'SALES
Page 25 and 26: 9.1 TRENDS SCREEN As many as six se
Page 27 and 28: 9.1.2 TREND COMMON SLOTS SCREEN Thi
Page 29 and 30: 10 DISPLAY MESSAGES The 'SYSTEM STA
Page 31 and 32: 10.2.3 Warning Messages WARNING - R
Page 33 and 34: 10.3 Cycling Shutdown Messages MULT
Page 35: 10.3.1 Cycling Shutdown Messages Mo
Page 39 and 40: VSD - LOW DC BUS VOLTAGE If the DC
Page 41 and 42: HARMONIC FILTER - 110% INPUT CURREN
Page 43 and 44: OIL- LOW DIFFERENTIALPRESSURE The d
Page 45 and 46: The imbalance is not checked until
Page 48: YORK Europe YORK FRANCE Z.I. 14 rue

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